Dyfyniad APA

Webster,F.V. et.al. (1966). Traffic signals. Her Majesty's Stationery Office.

Dyfyniad Arddull Chicago

Webster,F.V. et.al. Traffic Signals. London: Her Majesty's Stationery Office, 1966.

Dyfyniad MLA

Webster,F.V. et.al. Traffic Signals. Her Majesty's Stationery Office, 1966.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.